If your exhaust is getting in your coolant, you have a reeeeeeeeeeeeaaaaaaaaaaaaaaaaallllllllllllllllllyyyyyyyyyyyy major malfunction.
If you are only leaking coolant into the exhaust and use the type with copper in it, then yes, it should stop the leak. If coolant is getting into the oil or exhaust is getting into the radiator then no, none of them will do any good.
If you are getting exhaust smoke coming out of the radiator overflow, you need to replace the head gasket that seals the cylinder from the cylinder cap where your coolant runs through to cool the engine.
THAT MEANS THE RADIATOR IS GETTING HOT, Probably you mean Why isn't the radiator getting hot. could be becaused the thermostat isn't opening or the house to the radiator is disconnected or there is no coolant in the radiator,
Depending on what type of leak you are trying to fix sealants that get put in the radiator may work for a while. But my experience says not long. If you are installing a new one, do not use any sealant not recommended in the gasket kit. If you are blowing white smoke out the exhaust, there are a couple of different brands that have copper in them. One is in a bottle, mostly clear liquid with the copper settled to the bottom. If the coolant is only going out the exhaust, follow the instructions and I have never had this fail. If coolant is getting in the oil or exhaust is getting into the radiator it will not help.
Sounds like bad head gasket.
If the bubbles are because you need to bleed the system, full bleeding can have many sequences. All cars require that your heater is set to the max heat so that the valve is fully open and able to except coolant and allow to release bubbles. you'll also have to fill the radiator with the correct coolant all the way to the filler neck. next you'll have to see if your vehicle has a bleed valve somewhere around the engines upper inlet. if it does have one open it slightly. bubbles will Begin to escape as the are escaping keep filling the radiator to the top till you see that threw the bleed valve your getting a steady stream of coolant coming out. If it does not have a bleed valve you will have to fill it to the top. Turn the engine on and allow the thermostat to open. when this happens the coolant level will drop. Add more coolant in the radiator and accelerate the vehicle to 2000 rpm for 2-3 minutes. this will allow the water pump to pull air bubbles out the radiator filler neck. you will have to do this maybe 3 times max to get all air bubbles out of the system. once you have achieved this fill the reservoir to the middle of the hot and cold lines because by then you have warmed up your engine a bit.
Not sure what the question is getting at, but yes it does. There is no dedicated coolant radiator specifically for the intake, it shares the same coolant system and radiator as every other water-cooled system in the vehicle's engine.
Coolant getting into the fuel or oil.
If you are loosing coolant from the radiator and you have an abnormal amount of white smoke from tailpipe after vehicle is at normal operating temperature. This may be an indication of a bad head gasket. Or if you notice coolant getting mixed with the engine oil or engine oil getting mixed with the coolant. Also a sign of a bad head gasket.
it sounds like its clogged.
headgasket leak and exhaust gas is getting into the coolant
try using steel seal. you put it in your coolant and it seal the leak if theres exhaust gases in your radiator fluid or if your getting radiator fluid into your piston area. check out steel seal and i swear it will work for you its great!